39385478 has 16 divisors (see below), whose sum is σ = 64571904. Its totient is φ = 17868360.

The previous prime is 39385477. The next prime is 39385487. The reversal of 39385478 is 87458393.

39385478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39385477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12851 + ... + 15617.

It is an arithmetic number, because the mean of its divisors is an integer number (4035744).

Almost surely, 2^39385478 is an apocalyptic number.

39385478 is a deficient number, since it is larger than the sum of its proper divisors (25186426).

39385478 is a wasteful number, since it uses less digits than its factorization.

39385478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427.

The product of its digits is 725760, while the sum is 47.

The square root of 39385478 is about 6275.7850504937. The cubic root of 39385478 is about 340.2347801698.

The spelling of 39385478 in words is "thirty-nine million, three hundred eighty-five thousand, four hundred seventy-eight".